Anna's total daily energy needs based, on her desired body weight and level of physical activity that will allow her to maintain her precollege body weight is <u>1120.8 kcal/ day</u>

Explanation:

The Basal Metabolic Rate or BMR is a measure of a person's ability to process energy per day. Essentially, BMR looks at how much energy a body may use in a 24 hour period by measuring the needed calorie intake.

BMR is measured via the equation:

(Imperial) BMR = (4.536 × weight in pounds) + (15.88 × height in inches) − (5 × age) − 161;

This is the Mifflin-St Jeor formula, alternatively, the very similar Harris-Benedict Equation can be used; here, age, weight and height are the inputs required for the calculation. However, for this question we'll use the provided equation:

Anna's current weight= 121+15 lbs= 61.69 kg

...previous weight= 54.80 kg

<u> Formula for women: </u>

BMR (kcal/ day)= body weight in kg × 0.9 kcal/kg/ hour × 24 hours/day

At her current weight = 61.69 kg× 0.9 kcal/kg/ hour × 24 hours/day

=1332.5 kcal/ day

At her pre-college weight= 54.89 kg× 0.9 kcal/kg/ hour × 24 hours/day

=1120.8 kcal/ day

And going further, it may be concluded that Anna needs to eat 211.7 less calories to attain her previous weight...

7 0

3 years ago

What evolutionary advantage does compartmentalization of core metabolic processes offer eukaryotes?

Marysya12 [62]

Answer:

Compartmentalization increases the efficiency of the process of cellular respiration, leading to higher energy production (ATP).

Explanation:

In biology, compartmentalization refers to the formation of separate areas within the cell in order to carry out specific cellular functions more efficiently. In a cell, these compartments are usually delimited by lipid layer membranes. In eukaryotic cells, mitochondria (and also chloroplasts in plants) are the most important compartments in terms of metabolic processes. These organelles function to generate energy in the form of ATP by the process of cellular respiration. From an evolutionary perspective, compartmentalization increases the surface area that mitochondria use to generate energy ATP and provides a unique internal medium to carry out these metabolic reactions since oxidative phosphorylation, which the most important process in terms of energy generation, occurs in the mitochondrial matrix.

7 0

3 years ago

Treatment of epilepsy is directed at thickening the meninges to dampen brain electrical activity. stabilizing overexcited nerve

Nikitich [7]

Treatment of epilepsy is directed at stabilizing overexcited nerve membranes.

<h3><u>Explanation:</u></h3>

Epilepsy is a disease whose cause is unknown, but it occurs as the nerves get too excited in the brain due to some unknown cause, and causes the centers to conduct the nerve impulses restlessly, and gets in a tetani mode, which is epilepsy. The patient presents with idiopathic seizures and that too, aggravated by stress, tension etc.

Antiepileptic drugs like phenytoin sodium causes the change in sodium channels and pumps which releases the concentration difference on each side of the neural membrane, thereby reducing the potential difference between the two sides. Thereby it stabilizes the nerve membranes.

3 0

3 years ago